Biodegradation of polyethylene: a brief review

Ghatge, Sunil; Yang, Youri; Ahn, Jae-Hyung; Hur, Hor‐Gil

doi:10.1186/s13765-020-00511-3

Cited by 330 publications

(177 citation statements)

References 112 publications

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“…In rst step, LDPE broken down into shorter chains and next step followed by mineralization into CO 2 , H 2 O as described in sturm test. Laccase and Alkane showed reaction towards polyethylene belong to AlkB family enzymes, while Laccase is most reported enzyme responsible for HDPE degradation and alkane hydrolase for LDPE degradation (Ghatge et al 2020, Montazer et al 2020, Matjašič et al 2021. Other studies also con rmed that manganese peroxidase and laccase enzymes produced by Bacillus cereus involved in degradation of low-density polyethylene after incubation of nine weeks followed by con rmation by FTIR .…”

Section: Discussionmentioning

confidence: 90%

Biodeterioration of Microplastics: A promising step towards Plastics Waste Management

Tareen

Iqbal

Jamil

2021

Preprint

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Polyethylene and Polyester materials are resistant to degradation and found as significant source of microplastics pollution, which is emerging concern. In the present study, potential of dumped site bacterial community was evaluated. After primary screening it was observed that 68.5% were linear low-density polyethylene, 33.3% were high-density and 12.9% were Polyester degraders. Up to five strains were chosen for secondary screening, where they were monitored by FTIR, SEM and weight loss degradation trials. Major results were observed by Alcaligenes faecalis (MK517568) and Bacillus cereus (MK517567), as they show highest degradation activity among others. Alcaligenes faecalis (MK517568) degrade LLDPE by 3.5%, HDPE by 5.8% and Polyester by 17.3%. Bacillus cereus (MK517567) better tolerated at 30oC and degrade Polyester by 29%. Changes in infrared spectra indicated degradation pathways of different strains with types of plastics targeted. Through SEM analysis, groves, piths and holes were observed on surface. These findings suggest that soil bacteria develop effective mechanism for degradation of microplastics and beads that enables them to utilize plastics as source of energy without need of pre-treatments, which highlights importance of these soil bacteria for fate of effective plastic waste management in soil environment.

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Section: Discussionmentioning

confidence: 90%

Biodeterioration of Microplastics: A promising step towards Plastics Waste Management

Tareen

Iqbal

Jamil

2021

Preprint

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“…Advanced recycling can have a significant contribution to the circular economy where plastics are repurposed, not disposed, helping to keep plastics out of the environment or ocean and connects their inherent value for making novel valuable products. Based on a study from Argonne National Laboratory in 2017, for instance, making ultra-low sulfur diesel fuel from utilized plastics could reduce using water by 58% and using traditional energy sources by 96% (Ghatge et al 2020). Moreover, advanced recycling can assist local and national economies, particularly in the regions with less infrastructure or no infrastructure for managing and recycling waste.…”

Section: Advanced Recyclingmentioning

confidence: 99%

Plastic Recycling of Polyethylene Terephthalate (PET) and Polyhydroxybutyrate (PHB)—a Comprehensive Review

et al. 2021

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As an integral part of plastic waste, large amounts of polyethylene terephthalate (PET), polyhydroxybutyrate (PHB), and solid waste have led to serious environmental problems. In order to identify critical barriers to the reuse of plastic across a wide range of plastic values all over the world, we need to go through PET and PHB in terms of volume. This is a significant factor for the world and our global warming. The current uses of plastic through PET and PHB are significant. Through the recycling process of PET and PHB, the total volume of plastic uses will be decreased and reuse rate will be high by economic, social, and environmental factors. Key areas are identified by low demand due to price considerations, insufficient tracking and transparency of pricing transactions, and lack of common design. Integration of value chains is considered to be the most important intervention for respondents, following the need for increased investment and technology development. Recycling helps the environment and creates new economic opportunities. Reuse of plastics encourages businesses to develop new and innovative products. Recycling reduces through extraction (mining, quarrying, and logging), refining, and processing of raw materials which create significant air and water pollution. As renewable energy saving also reduces greenhouse gas emissions, which help to cope with climate change. This paper aims to raise awareness that increase the demand of recycling process of PET and PHB and to identify critical barriers of recycling throughout a series of plastic prices with the volume.

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“…Perbaikan tingkat ekonomi masyarakat, diikuti oleh perubahan gaya hidup yang berpengaruh pada peningkatan konsumsi produk plastik sebagai pemenuhan kebutuhan hidup sehari-hari (Ojha et al, 2017). Polietilen (PE) mewakili sekitar 92% plastik sintetis yang diproduksi secara global (Ghatge et al, 2020) dan dimanfaatkan sebagai bahan plastik kemasan. Di Indonesia produksi dan konsumsi plastik terutama kemasan sekali pakai seperti kantong plastik konvensional jenis High-density polyethylene (HDPE) yang berbahan polimer polietilen juga diyakini akan terus mengalami peningkatan.…”

Section: Latar Belakangunclassified

Pengaruh mikroplastik polietilen dan oxo-degradable (Oxium) pada pertumbuhan Mikroalga Tetraselmis Chuii

et al. 2021

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Salah satu cara yang digunakan di Indonesia dalam menanggulangi berlimpahnya jumlah sampah plastik di lingkungan perairan adalah dengan menggantikan kantong plastik berbahan polimer polietilen (PE) dengan plastik oxodegradable yang disebut oxium. Penelitian ini dilakukan dengan tujuan untuk melihat pengaruh mikroplastik polietilen jenis HDPE (High Density Polyethylene) dengan plastic oxodegradable oxium. Penelitian dilakukan dengan menggunakan mikroalga Tetraselmis chuii sebagai mikroorganisme yang akan mendapat perlakuan mikroplastik dengan konsentrasi yang berbeda. Dari Hasil pengukuran optical density untuk menentukan laju pertumbuhan mikroalga Tetraselmis Chuii menunjukkan bahwa laju pertumbuhan Tetraselmis dengan perlakuan mikroplastik polietilen mengalami penurunan yang signifikan dibandingkan dengan mikroplastik oxium. Konsentrasi mikroplastik ikut berperan dalam menentukan laju pertumbuhan Tetraselmis chuii di mana pada perlakuan mikroplastik oxium terjadi penurunan hingga 37,66% pada konsentrasi mikroplastik 300mg/500mL dan 81,70% pada perlakuan mikroplastik polietilen dengan konsentrasi 200mg/500mL. Mikroplastik polietilen dan oxium memberikan dampak negatif pada organisme tingkat rendah disebabkan oleh kemampuannya dalam melepas bahan aditif yang bersifat toksik sehingga diperlukan solusi yang lebih baik untuk menggantikan fungsi plastik dengan bahan yang lebih ramah bagi lingkungan hidup. ABSTRACTOne of the methods used in Indonesia in tackling the abundance of plastic waste in the aquatic environment is to replace plastic bags made of polyethylene (PE) polymer with oxodegradable plastic called oxium. This research was conducted with the aim of examining the effect of HDPE (High Density Polyethylene) microplastic polyethylene with oxodegradable oxium plastic. The research was conducted using the microalgae Tetraselmis chuii as microorganisms that will receive microplastic treatment with different concentrations. From the results of optical density measurements to determine the growth rate of Tetraselmis chuii microalgae, it was shown that the growth rate of Tetraselmis with polyethylene microplastics treatment decreased significantly compared to oxium microplastics. The concentration of microplastics played a role in determining the growth rate of Tetraselmis chuii where in the oxium microplastic treatment there was a decrease of up to 37.66% at the microplastic concentration of 300mg/500mL and 81.70% at the polyethylene microplastic treatment with a concentration of 200mg/500mL. Polyethylene and oxyum microplastics have a negative impact on low-level organisms due to their ability to release toxic additives so that better solutions are needed to replace the function of plastics with materials that are more environmentally friendly.

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Biodegradation of polyethylene: a brief review

Cited by 330 publications

References 112 publications

Biodeterioration of Microplastics: A promising step towards Plastics Waste Management

Biodeterioration of Microplastics: A promising step towards Plastics Waste Management

Plastic Recycling of Polyethylene Terephthalate (PET) and Polyhydroxybutyrate (PHB)—a Comprehensive Review

Pengaruh mikroplastik polietilen dan oxo-degradable (Oxium) pada pertumbuhan Mikroalga Tetraselmis Chuii

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